{"id":"CVE-2025-8033","state":"PUBLISHED","title":"Incorrect JavaScript state machine for generators","description":"The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.","publishedAt":"2025-07-22T20:49:27.477Z","updatedAt":"2026-07-29T14:59:05.850Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.26","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.13","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"140.1","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"141","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.13","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"140.1","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"141","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1973990","https://www.mozilla.org/security/advisories/mfsa2025-56/","https://www.mozilla.org/security/advisories/mfsa2025-57/","https://www.mozilla.org/security/advisories/mfsa2025-58/","https://www.mozilla.org/security/advisories/mfsa2025-59/","https://www.mozilla.org/security/advisories/mfsa2025-61/","https://www.mozilla.org/security/advisories/mfsa2025-62/","https://www.mozilla.org/security/advisories/mfsa2025-63/","https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/8xxx/CVE-2025-8033.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-8033","state":"PUBLISHED","datePublished":"2025-07-22T20:49:27.477Z","dateUpdated":"2026-07-29T14:59:05.850Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-07-22T10:13:59.291Z"},"containers":{"cna":{"title":"Incorrect JavaScript state machine for generators","descriptions":[{"lang":"en","value":"The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.26","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.13","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"140.1","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"141","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.13","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"140.1","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"141","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1973990"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-56/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-57/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-58/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-59/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-61/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-62/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-63/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:27:06.664Z"},"credits":[{"lang":"en","value":"Shaheen Fazim"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-07-23T13:36:06.360574Z","id":"CVE-2025-8033","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T14:59:05.850Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:07:52.372Z"}}]}}}